Bookholder



FIG. 1 is a front perspective view of a bookholder showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image thereof;

FIG. 3 is a top perspective view thereof;

FIG. 4 is a bottom rear perspective view thereof; and

FIG. 5 is a bottom front perspective view thereof. 

The ornamental design for a bookholder, as shown and described. 